Pengetahuan, Persepsi dan Kebijakan Pengelolaan Ekowisata Gajah di Kawasan Aek Nauli, Danau Toba. Inovasi, [S. l.], v. 16, n. 2, p. 129–137, 2019. DOI: 10.33626/inovasi.v16i2.150. Disponível em: https://jurnal.sumutprov.go.id/index.php/inovasi/article/view/150. Acesso em: 17 aug. 2026.